Concrete surface permeation consolidation type self-repairing coating and preparation method thereof

A concrete surface and self-repairing technology, which is applied in the field of coatings, can solve the problems of ignoring the multifunctional integration of concrete protective materials, and achieve excellent hydrophobicity, good weather resistance, and good low temperature resistance.

Inactive Publication Date: 2020-02-21
石家庄市油漆厂 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] None of the existing patents and documents effectively combine the permeability, hydrophobicity, elasticity, high and low temperature resistance and self-healing properties of silicon materials, ignoring the need for multifunctional integration of concrete protective materials

Method used

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  • Concrete surface permeation consolidation type self-repairing coating and preparation method thereof
  • Concrete surface permeation consolidation type self-repairing coating and preparation method thereof
  • Concrete surface permeation consolidation type self-repairing coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Raw material ratio of primer

[0029]

[0030] Preparation method of primer:

[0031] (1) Add silica sol into the reactor, then add methyltrimethoxysilane and KH-560 and stir at 30-40°C for 2-3h.

[0032] (2) Add triethyl borate to continue the reaction for 1-2h.

[0033] (3) Filtrate and pack to obtain the primer.

[0034] The formulation of the topcoat includes:

[0035]

[0036] Described topcoat preparation method is as follows:

[0037] Put the terminal silane modified polyether resin into the mixing tank, then add 200# solvent oil, titanium dioxide, mica powder, dispersant, defoamer, leveling agent, ultraviolet absorber, stir and disperse evenly, and grind to below 30μm , add silyl borate, KH-550, catalyst, water repellent, stir evenly to get top coat.

Embodiment 2

[0039] Raw material ratio of primer:

[0040]

[0041] Preparation method of primer:

[0042] (1) Add the silica sol into the reactor, then add methyltrimethoxysilane, propyltrimethoxysilane and KH-560 and stir at 30-40°C for 2-3h.

[0043] (2) Add tributyl borate to continue the reaction for 1-2h.

[0044] (3) Filtrate and pack to obtain the primer.

[0045] The formulation of the topcoat includes:

[0046]

[0047]

[0048] Described topcoat preparation method is as follows:

[0049] Put the terminal silane modified polyether resin into the mixing tank, then add 200# solvent oil, titanium dioxide, mica powder, dispersant, defoamer, leveling agent, ultraviolet absorber, stir and disperse evenly, and grind to below 30μm , add silyl borate, KH-550, catalyst, water repellent, stir evenly to get top coat.

Embodiment 3

[0051] Primer raw material ratio

[0052]

[0053] Preparation method of primer:

[0054] (1) Add silica sol into the reactor and then add methyltriethoxysilane, propyltrimethoxysilane and KH-560 and stir at 30-40°C for 2-3h.

[0055] (2) Trimethyl borate was added to continue the reaction for 1-2h.

[0056] (3) Filtration and packaging to obtain the primer.

[0057] The topcoat formulations include:

[0058]

[0059]

[0060] The preparation method of the topcoat;

[0061] Described topcoat preparation method is as follows:

[0062] Put the terminal silane modified polyether resin into the mixing tank, then add 200# solvent oil, titanium dioxide, mica powder, dispersant, defoamer, leveling agent, ultraviolet absorber, stir and disperse evenly, and grind to below 30μm , add silyl borate, KH-550, catalyst, water repellent, stir evenly to get top coat.

[0063] The performance test data of the multi-functional concrete self-repairing coating prepared in implementa...

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Abstract

The invention discloses a concrete surface permeation consolidation type self-repairing coating. The coating is composed of a primer and a finishing coat, wherein the primer is composed of the following raw materials in parts by weight: 40 to 60 parts of epoxy resin, 3 to 5 parts of KH-560, 40 to 50 parts of a silica sol and 4 to 6 parts of boric acid ester; and the finishing coat is composed of the following raw materials in parts by weight: 35 to 50 parts of silane-terminated modified polyether resin, 25 to 40 parts of a filling material, 2 to 10 parts of a pigment, 0.5 to 1 part of a dispersing agent, 0.5 to 1 part of a defoaming agent, 0.5 to 1 part of a leveling agent, 1 to 2 parts of an ultraviolet light absorber, 25 to 40 parts of solvent oil No. 200, 5 to 15 parts of silyl borate,2 to 4 parts of a coupling agent, 0.5 to 1.0 part of a catalyst and 3 to 5 parts of a water repellent. The coating provided by the invention has excellent weather resistance, resistance to high and low temperature, resistance to acid, alkali and salt, freeze thawing resistance, hydrophobicity and self-repairability.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a concrete surface penetration and consolidation type self-repairing coating, and at the same time, the invention also relates to a preparation method of the coating. Background technique [0002] In the design and construction of bridges, ports, docks, highways and major construction projects in our country, only the strength of concrete is considered, and the durability is ignored. At present, our country is in the peak period of infrastructure construction. There are extensive chloride ion corrosion environments in the coastal areas, saline-alkali lands in the west and road bridges sprinkled with deicing salt in winter, and there is an acid rain environment in the atmosphere in the west. Therefore, the research on the corrosion protection of concrete structures is particularly important, and has become an urgent problem to be solved. The commonly used protective methods for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/61C04B41/52C09D1/00C09D7/61C09D7/63C09D171/02
CPCC04B41/61C04B41/52C09D1/00C09D5/002C09D7/61C09D7/63C09D171/02C08K2003/2241C08K13/02C08K3/34C08K3/22C08K5/544C04B41/5035C04B41/4905C04B41/46C04B41/4539C04B41/5041C04B41/5024C04B41/495C04B41/45
Inventor 史磊赵宝平希国栋王利伟陈大豹刘宏生朱立岩闫晓辉任泽
Owner 石家庄市油漆厂
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